fix: enable autocomplete to use const type

mui · Mar 1, 2021 · d830a6f · d830a6f
1 parent 5bd4cce
commit d830a6f
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Showing 2 changed files with 9 additions and 1 deletion.
diff --git a/packages/material-ui/src/useAutocomplete/useAutocomplete.d.ts b/packages/material-ui/src/useAutocomplete/useAutocomplete.d.ts
@@ -228,7 +228,7 @@ export interface UseAutocompleteProps<
   /**
    * Array of options.
    */
-  options: T[];
+  options: ReadonlyArray<T>;
   /**
    * If `true`, the input's text is selected on focus.
    * It helps the user clear the selected value.

diff --git a/packages/material-ui/src/useAutocomplete/useAutocomplete.spec.ts b/packages/material-ui/src/useAutocomplete/useAutocomplete.spec.ts
@@ -104,6 +104,14 @@ function Component() {
     onChange(event, value: Person[]) {},
   });
 
+  // options accepts const and value has correct type
+  useAutocomplete({
+    options: ['1', '2', '3'] as const,
+    onChange(event, value) {
+      expectType<'1' | '2' | '3' | null, typeof value>(value);
+    },
+  });
+
   // Disable clearable
 
   useAutocomplete({